Yizhe Zhu

collaborators

3 papers

math.PR2025

Singular values of sparse random rectangular matrices: Emergence of outliers at criticality

Ioana Dumitriu, Hai-Xiao Wang, Zhichao Wang +1

Consider the random bipartite Erdős-Rényi graph $G (n, m, p)$ , where each edge with one vertex in $V_{1} = [n]$ and the other vertex in $V_{2} = [m]$ is connected with probabi…

math.PR2025

Spectra of high-dimensional sparse random geometric graphs

Yifan Cao, Yizhe Zhu

We determine the limiting empirical spectral distribution of sparse high-dimensional random geometric graphs. The vertices are independent uniform points on the unit sphere $S^{d-1…

stat.ML2024

Universality of Kernel Random Matrices and Kernel Regression in the Quadratic Regime

Parthe Pandit, Zhichao Wang, Yizhe Zhu

Kernel ridge regression (KRR) is a popular class of machine learning models that has become an important tool for understanding deep learning. Much of the focus thus far has been o…